Notes: The cast are challenged to find the 92 secrets of the ruins of Nan Madol. It was eventually revealed that the site is composed of 92 artificial islands. For the first half, each member had a ‘guardian angel’ among the other members who secretly chose them to take care of and protect. Despite this, Oh Jong-hyuk cut himself while climbing a coconut tree and had to get stitches. In the second half, the cast traveled to Kosrae and are given their second mission: Find out the secret behind 16:17 or 4:17 PM. Their final location is the Chuuk islands where they are given their last mission, which is to live without the chief, Kim Byung-man, for 50 hours.